iOS versions Percentage

I was making some analysis in order to understand something more about aWings users. This is the chart of iOS version percentage for the users:


iOS Version


This graph shows clearly that for technology or startups apps, you could develop only for iOS 7.


Mac OSX Lion HP Color Printers Drivers

If you have recently moved to Mac from Windows and you want keep on using your old HP color printers, you are having some issue for sure.

The most drivers present in OSX are not compatible with yours and so you are only able to print in black and white.

To simply solve this problem, just install he HPijs driver from Linux Foundation. Just go to this site:


and install all the three package:

  • Foomatic-RIP
  • Ghostscript

Now you have only to switch on your printer and all your colors prints are there!



iOS Developing: App Compatible with iPhone 3G and armv6

XCode 4.2 uses as default armv7 for processor instructions. As iPhone 3G is armv6 compatible only, all apps created by default in XCode 4.2 cannot run on these devices.

Fixing this problem is very easy. First af all you should add armv6 in your compiler settings in “Architectures” and “Vallid Architectures” for your Target:


Secondary you have to edit your info.plist file by substituting “armv7” with “armv6” as “required device capabilities”.


NOTE: in info.plist you have to insert only “armv6”, otherwise this app will require both of the architectures and it will work only on iPhone 3GS, 4 and 4S.

I took the pictures to write this post from this article: http://stackoverflow.com/questions/7760946/is-it-possible-to-target-older-ios-versions-when-using-xcode-4-2-and-ios-5-sdk




Oddest questions in job interview!

Here are some oddest question asked in job interview in big companies:

“How many peo­ple are using Face­book in San Fran­cis­co at 2:30 p.m. on a Fri­day?” — Asked at Google, Ven­dor Rela­tions Man­ag­er can­di­date

“If Ger­mans were the tallest peo­ple in the world, how would you prove it?” — Asked at Hewlett-Packard, Prod­uct Mar­ket­ing Man­ag­er can­di­date
“Given 20 ‘destruc­tible’ light bulbs (which break at a cer­tain height), and a build­ing with 100 floors, how do you deter­mine the height that the light bulbs break?” — Asked at Qual­comm, Engi­neer­ing can­di­date

“How would you cure world hunger?” — Asked at Amazon.com, Soft­ware Devel­op­er can­di­date
“You’re in a row boat, which is in a large tank filled with water. You have an anchor on board, which you throw over­board (the chain is long enough so the anchor rests com­plete­ly on the bot­tom of the tank). Does the water level in the tank rise or fall?” — Asked at Tesla Motors, Mechan­i­cal Engi­neer can­di­date

“Please spell ‘diver­ti­c­uli­tis’.” — Asked at EMSI Engi­neer­ing, Account Man­ag­er can­di­date

“You have a bou­quet of flow­ers. All but two are roses, all but two are daisies, and all but two are tulips. How many flow­ers do you have?” — Asked at Epic Sys­tems, Cor­po­ra­tion Project Manager/Implementation Con­sul­tant can­di­date

“How do you feel about those jok­ers at Con­gress?” — Asked at Con­sol­i­dat­ed Elec­tri­cal, Man­age­ment Trainee can­di­date

“If you were a Microsoft Office pro­gram, which one would you be?” — Asked at Sum­mit Rac­ing Equip­ment, Ecom­merce can­di­date.


Extract from: http://www.slashgear.com/oddest-questions-asked-in-job-interviews-this-year-by-tech-firms-30205044/




Venture Capitalist Mark Suster On Getting An MBA

Here an extract from an interview to Mark Suster about the importance to get an MBA to work for startups or venture capitalists:

If I were 27 again and working at a start-up and was considering getting an MBA, I think I’d go to my boss and ask if I could spend a year in sales, 6 months in product management or marketing and 6 months in finance.  I’d keep my personal balance sheet positive and my future options open.  It’s hard to start companies and take risks when you’re $150,000 in debt.


The Irish Banking Crisis: A Parable

Great article from Umair Arque:

Once upon a time, there was a country where bankers disappeared. The bankers, fed up with regulation, dissatisfaction, and downright hostility, decided to unleash the planet-destroying superweapon in their arsenal: they went on strike, not once, but three times.

[…] the economy continued to grow. Though the money supply did contract sharply, neither trade, commerce, nor industry came to a grinding halt.

How? People created their own currencies, to substitute for the collapsing money supply. They kept using checks to pay one another, but then, people’s checks began trading within communities.


The country in question was Ireland — today, in deep crisis because of profligate banks.

So why were the Irish of yesteryear able to trade notes with one another, in lieu of credit issued by banks? Well, Ireland was curiously well situated for this kind of resilience. […] the Irish economy was characterized by intense, frequent, conversational personal contact: tight, dense, solid local knowledge circulating at high velocity within and across communities. Result? Borrowers and lenders could build solid microfoundations of trust.

In other words, when you’ve been chatting with Bill every night at the local pub for twenty years, you probably know whether his note is a good bet or not (and further, just how much to discount it to earn a sustainable and fair return, that neither fleeces Bill, nor robs you). Furthermore, if you’re the publican, and you’ve been chatting with me and with Bill, then you’re even better positioned to become a de facto arbitrator of notes — a bank. And that’s exactly the role that pubs began to play.

You might say that a radically decentralized, p2p financial system spontaneously arose. Instead of letting the bankers’ strike collapse their prosperity, people decided, simply, that they could get on with the day-to-day stuff of banking themselves. In slightly more formal terms, I’d suggest that they were able to take on, at least in tiny part, five of Robert Merton and Zvi Bodie’s six standard functions of a financial system: settling payments, providing information, setting incentives, pooling resources, and transferring resources. The bankers thought even one of six might have been impossible. It’s as if the economy settled into a new dynamic equilibrium: one where emergent, unpredicted — and totally unforeseen — behavior unlocked a very different kind of financial system. It wasn’t perfect; yes, foreign currency transactions were problematic, yes, moral hazard was an issue, and perhaps my reading, having not been there myself, is frankly erroneous. It’s not a utopian picture — just a very different one from mega-banking, with a very different feel, purpose, and structure.

And yet today, Ireland’s facing perhaps the most vicious austerity package in recent history. And as usual, the average Joe and Jane are being forced — not asked — to foot the bill for the profligacy of the financiers. So are their grandkids: hence, an entire generation is rumored to be on the verge on fleeing, instead of sticking around to get the shaft.

Now, here’s what I’m not suggesting: that you or I extrapolate directly and naively from history. Some social scientists have suggested that the Irish banking strikes might be a rare, telling natural experiment, that disconfirms the value of banks. I’d suggest it’s more like a parable — a tale that highlights deeper principles at play.

It’s not that Ireland can exit its troubles merely by vaporizing the banks, and letting pubs trade notes. Ireland 1970 is a far cry from the Celtic tiger of the 2000s. The Irish economy of the 70s was much smaller. The global economy wasn’t as tightly, sharply interdependent. The sheer velocity of stuff — not to mention capital — was radically slower. The staggering capital requirements of today’s projects — think billion dollar semiconductor factories — dwarf those of yesteryear.


The parable of the disappearing bankers gives the tiniest glimpse of a better way: a path to a smarter kind of growth, built on a different set of institutions — those that operate at micro-scale, instead of mega-scale, built on human relationships, instead of anonymous transactions, self-organizing, instead of “administered,” and that have the humanistic and the meaningful, instead of soul-crushingly trivial, hardwired into their very DNA.

Maybe, just maybe, banks need people a lot more than people need banks. […]